ClassID:

217092

H02J9/08 - CPC Classification

Classification description:

Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover

Recent Application in this class:
#1
20250219444
2025-07-03

METHOD FOR PERFORMING A START-UP OF AN OFFSHORE PLANT WITHOUT EXTERNAL ENERGY SOURCES

#2
20250118985
2025-04-10

ELECTRICALLY-DRIVEN PUMPING SYSTEM AND DRIVING METHOD THEREOF

#3
20240243606
2024-07-18

Systems and Methods for Supplying Uninterruptible Power

#4
20240235253
2024-07-11

Uninterruptible power supply system with engine start-up

#5
20240162738
2024-05-16

Electrically-driven pumping system and driving method thereof

#6
20230275453
2023-08-31

Uninterruptible power supply apparatus

#7
20230074678
2023-03-09

Centralized uninterruptable power supply system

#8
20230026299
2023-01-26

VEHICLE BATTERY WITH A SELF-CONTAINED BACKUP CAPABILITY

#9
20220352748
2022-11-03

Systems and methods for supplying uninterruptible power

#10
20220285978
2022-09-08

AUTOMATIC TRANSFER PLUG

#11
20220278627
2022-09-01

Generator and battery backup with conversion device

#12
20220255319
2022-08-11

Electrical system for mobile power generation device and mobile power generation device

#13
20220131408
2022-04-28

Maintenance bypass assembly for uninterruptable power supply

#14
20220085647
2022-03-17

Uninterruptible-power-supply machine

#15
20210408823
2021-12-30

Apparatus, systems, and methods for providing a rapid threshold amount of power to a customer load during transfer between a primary power supply and a secondary power supply

#16
20210184493
2021-06-17

Solar electric hybrid backup power system

#17
20210184492
2021-06-17

Engine transmission-dependent control for electric auxiliary power generation

#18
20210104911
2021-04-08

AUTOMATIC TRANSFER PLUG

#19
20210087984
2021-03-25

Engine warm-up bypass control

#20
20200389045
2020-12-10

Maintenance bypass assembly for uninterruptable power supply

#21
20200227939
2020-07-16

Systems and methods for supplying uninterruptible power

#22
20200161862
2020-05-21

STANDBY BATTERY-METER SOCKET ADAPTER WITH BATTERY PACK

#23
20200119553
2020-04-16

POWER MANAGEMENT SYSTEM FOR STANDBY GENERATOR

#24
20200099251
2020-03-26

ASTS-less block redundant electrical topology with variable UPS walk-ins

#25
20200076231
2020-03-05

Power control apparatus and power control method

#26
20190341802
2019-11-07

System and method for controlling auxiliary power supply

#27
20190305588
2019-10-03

Solar electric hybrid backup power system

#28
20190260206
2019-08-22

Modular inverter system and charging system for off-grid power generation

#29
20190252914
2019-08-15

Power supply system and method

#30
20190252913
2019-08-15

Power supply system and method

#31
20190252912
2019-08-15

Power supply system and method

#32
20190214828
2019-07-11

Independent speed variable frequency based electrified propulsion system architecture

#33
20190181644
2019-06-13

PCS efficiency-considered microgrid operation device and operation method

#34
20190148975
2019-05-16

Power supply recovery current history-based limitation

#35
20190027960
2019-01-24

Methods and apparatus for power generation and distribution

#36
20190020284
2019-01-17

Generator and battery backup with conversion device

#37
20180331565
2018-11-15

Air powered battery charger

#38
20180241245
2018-08-23

Method for monitoring a source changeover switch and source changeover switch implementing such a method

#39
20180233898
2018-08-16

PHASE COMPENSATION SYSTEM

#40
20180198282
2018-07-12

Energy storage system

#41
20180183263
2018-06-28

Transfer switch

#42
20170338691
2017-11-23

Segment protected parallel bus

#43
20170264101
2017-09-14

DFIG-based UPS systems and methods of control

#44
20170256984
2017-09-07

Power supply system and method

#45
20170126057
2017-05-04

GENERATOR HAVING IMPROVED COLD WEATHER STARTING

#46
20170098956
2017-04-06

Data center power network with multiple redundancies

#47
20170033599
2017-02-02

Segment protected parallel bus

#48
20170002737
2017-01-05

Heating System for Backup Generator

#49
20160374875
2016-12-29

Safety system for use with a generator of a vehicle with a cab

#50
20160359362
2016-12-08

Fast Restart Of Flywheel In Uninterruptible Power Supply System Having Flywheel System/Battery Combination

#51
20160359361
2016-12-08

Uninterruptible power supply and method of use

#52
20150324696
2015-11-12

Prediction of available generator running time

#53
20150318698
2015-11-05

Distributed electric power generation system, control station, and method of controlling the same

#54
20150311751
2015-10-29

Energy storage module with DC voltage intermediate circuit

#55
20150280489
2015-10-01

Hybrid power source lighting and energy management system for operation in harsh and/or remote locations

#56
20150222147
2015-08-06

Systems and methods for uninterruptible power supplies with bidirectional power converters

#57
20150214784
2015-07-30

Systems and methods for uninterruptible power supplies with bidirectional power converters

#58
20150214782
2015-07-30

SYSTEMS AND METHODS FOR UNINTERRUPTIBLE POWER SUPPLIES WITH GENERATORS

#59
20150200564
2015-07-16

Hybrid electric generator set

#60
20150180281
2015-06-25

Electrohydraulic generator systems and methods

#61
20150180280
2015-06-25

Bus recovery after overload

#62
20150176607
2015-06-25

Uninterruptible power supply systems using electrohydraulic energy storage

#63
20150162814
2015-06-11

Self-recharging electric generator system

#64
20150084418
2015-03-26

Energy interface system

#65
20140375133
2014-12-25

Segment protected parallel bus

#66
20140288722
2014-09-25

Systems and methods for microgrid power generation management with selective disconnect

#67
20140210256
2014-07-31

Power generation system with anticipatory operation

#68
20140139028
2014-05-22

Cogeneration apparatus

#69
20140028452
2014-01-30

Remote annunciator

#70
20140002032
2014-01-02

Standby power system that predicts a need to supply power to a load to minimize start time of a generator

#71
20140001869
2014-01-02

Semiautomatic transfer switch with open neutral protection

#72
20140001769
2014-01-02

Generator management system that selectively cuts off fuel to a generator to add a load to a bus

#73
20130342012
2013-12-26

Power distribution with wraparound bus

#74
20130270908
2013-10-17

Load shed control module for use with electrical generator

#75
20130257050
2013-10-03

Method for controlling a wind farm, wind farm controller, wind farm, computer-readable medium and program element

#76
20130221877
2013-08-29

Systems and methods for black starting a power grid using a self-starting synchronous condenser

#77
20130154370
2013-06-20

Generator controller configured for preventing automatic transfer switch from supplying power to the selected load

#78
20130079943
2013-03-28

Systems and methods for microgrid power generation management with selective disconnect

#79
20130062943
2013-03-14

Load shedding circuit for RAM air turbines

#80
20130049473
2013-02-28

FLUID-DRIVEN FLYWHEEL UNINTERRUPTIBLE POWER SUPPLY

#81
20130041514
2013-02-14

Hybrid electric generator set

#82
20130009467
2013-01-10

Load control module for a generator and method of operation

#83
20120282561
2012-11-08

HEATER AND ELECTRICAL GENERATOR SYSTEM AND RELATED METHODS

#84
20120242145
2012-09-27

AUTOMATIC TRANSFER SWITCH

#85
20120193987
2012-08-02

Energy interface system

#86
20120146411
2012-06-14

Polyphase power management system for telecommunications equipment site power plant and method of operation thereof

#87
20120053884
2012-03-01

STANDBY GENERATOR WITH WEATHER ALERT RECEIVER AND METHOD OF OPERATION

#88
20120025620
2012-02-02

Hybrid power management system and method for unmanned remote cell sites

#89
20120025616
2012-02-02

DC power system having a power architecture for optimizing efficiency and a system controller of the system

#90
20120016546
2012-01-19

System and Method for Supplying Back-Up Electric Power to a House from a Hybrid Vehicle

#91
20110304211
2011-12-15

Rack-based uninterruptible power supply

#92
20110298286
2011-12-08

Dynamic load shedding system for a standby generator

#93
20110298285
2011-12-08

Active load management system

#94
20110271927
2011-11-10

Automatic start/stop device for engine-driven power generator

#95
20110254370
2011-10-20

Wireless annunciator for an electrical generator

#96
20110198928
2011-08-18

Emergency generator power system with reserved fire protection power

#97
20110175450
2011-07-21

Load control module for a generator and method of operation

#98
20110170219
2011-07-14

Islanded power system with distributed power supply

#99
20110137485
2011-06-09

System for emergency power supply in case of power grid failure

#100
20110133545
2011-06-09

Aircraft electrical power system architecture using auxiliary power unit during approach and taxi

#101
20110109161
2011-05-12

Uninterruptible power supply

#102
20100156117
2010-06-24

Genset power system having multiple modes of operation

#103
20100038966
2010-02-18

Automatic transfer switch

#104
20100013315
2010-01-21

Device And Method For Supplying Power To A Critical Load

#105
20090240377
2009-09-24

Power monitoring system

#106
20090134703
2009-05-28

Apparatus, system, and method for a low cost multiple output redundant power supply

#107
20090134625
2009-05-28

Power backup system for offshore wind generators

#108
20090091190
2009-04-09

Batteryless starter for UPS with sensor, motor generator, rectifier, and transformer

#109
20090079266
2009-03-26

Electrical Power Distribution System and Method Thereof

#110
20090033154
2009-02-05

Redundant isolation and bypass of critical power equipment

#111
20090021082
2009-01-22

Generator systems and methods using timing reference signal to control generator synchronization

#112
20090021080
2009-01-22

Power systems and methods using an induction generator in cooperation with an uninterruptible power supply

#113
20080197705
2008-08-21

System including a microturbine and a high-frequency alternator generating backup power for a telecommunications system

#114
20080088183
2008-04-17

Integrated closed loop control method and apparatus for combined uninterruptible power supply and generator system

#115
20080058997
2008-03-06

System and method for interactive generator and building electric load control

#116
20080034256
2008-02-07

Iso-parallel UPS system configuration

#117
20080018175
2008-01-24

Electrical power distribution system and method thereof

#118
20070251469
2007-11-01

Cogeneration apparatus

#119
20070236087
2007-10-11

Backup community power

#120
20070200533
2007-08-30

Power generation system for mobile power supply

#121
20070200435
2007-08-30

Redundant mobile power supply system

#122
20070053123
2007-03-08

Overload detector/enunciator

#123
20070052294
2007-03-08

Apparatus for providing high quality power

#124
20070029969
2007-02-08

ENERGY SAVING SYSTEM AND METHOD

#125
20070022755
2007-02-01

Systems and methods for providing backup energy to a load

#126
20060202559
2006-09-14

Power unit

#127
20060157987
2006-07-20

Fuel saving engine driven aircraft ground power device and method of use

#128
20060138868
2006-06-29

Power transfer switch assembly

#129
20060117753
2006-06-08

Method of and apparatus for producing uniterruptible power description

#130
20060071554
2006-04-06

Electrical power distribution system and method thereof

#131
20060066108
2006-03-30

Mobile-power system utilizing propane generator, fuel cell and super capacitors

#132
20060022524
2006-02-02

Distributed power generation, conversion, and storage system

#133
20060017328
2006-01-26

Control system for distributed power generation, conversion, and storage system

#134
20050206343
2005-09-22

Power generation system and control method

#135
20050200205
2005-09-15

On-site power generation system with redundant uninterruptible power supply

#136
20050200133
2005-09-15

Separate network and method for operating a separate network

#137
20050184589
2005-08-25

Method of supplying electric power from shore to ship and system thereof

#138
20050127880
2005-06-16

Induction generator power supply

#139
20050087987
2005-04-28

[HOUSEHOLD EMERGENCY POWER GENERATOR]

#140
20050052029
2005-03-10

Domestic combined heat and power unit

#141
20050052027
2005-03-10

Automatic generator starting protection

#142
20050012395
2005-01-20

Integrated closed loop control method and apparatus for combined uninterruptible power supply and generator system

#143
20050012336
2005-01-20

Mobile, self-sufficient operating assembly for providing electrical energy

#144
17682977
2024-07-30

System for controlling power in a facility

#145
16177369
2020-10-27

Systems and methods for remote monitoring and control of emergency electrical generating systems

#146
16049105
2020-06-09

Data center power network with multiple redundancies

#147
13288150
2014-05-20

Efficient energy producing system